123242301020 has 24 divisors (see below), whose sum is σ = 258817345584. Its totient is φ = 49295298816.

The previous prime is 123242301019. The next prime is 123242301031. The reversal of 123242301020 is 20103242321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123242300983 and 123242301001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 662132 + ... + 827588.

It is an arithmetic number, because the mean of its divisors is an integer number (10784056066).

Almost surely, 2^123242301020 is an apocalyptic number.

123242301020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123242301020 is an abundant number, since it is smaller than the sum of its proper divisors (135575044564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123242301020 is a wasteful number, since it uses less digits than its factorization.

123242301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202709 (or 202707 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 123242301020 its reverse (20103242321), we get a palindrome (143345543341).

The spelling of 123242301020 in words is "one hundred twenty-three billion, two hundred forty-two million, three hundred one thousand, twenty".